超高强度钢丝多道次冷拉拔模拟及工艺优化  

Multi-pass cold drawing simulation and process optimization of ultra-high strength steel wires

作　　者：康筱龙 鲍思前[1] 田仁敏 胡家瑞 刘晨 KANG Xiaolong;BAO Siqian;TIAN Renmin;HU Jiarui;LIU Chen(Key Laboratory of Iron and Steel Metallurgy and Resource Utilization,Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学钢铁治金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《现代交通与冶金材料》2024年第5期9-16,共8页Modern Transportation and Metallurgical Materials

基　　金：国家重点研发计划资助项目(2022YFB3706701)。

摘　　要：冷拉拔过程中钢丝塑性变形不均匀,拉拔后钢丝内部会产生明显的残余应力,这会极大影响钢丝的力学性能。本文利用Abaqus建立了超高强度钢丝多道次冷拉拔有限元模型,研究了模具半锥角、拉拔道次、定径带长度、摩擦系数对冷拉拔后钢丝残余应力的影响,并分析了各个工艺参数对钢丝残余应力及塑性变形均匀性的影响程度,在此基础上优化了拉拔工艺参数。During the cold drawing process,the plastic deformation of the steel wires is not uniform,and obvious residual stress can be generated inside the steel wires after drawing,which will greatly affect the mechanical properties of the steel wires.In this paper,the finite element model of multi-pass cold drawing of ultra-high strength steel wires is established by using Abaqus.The influence of die half cone angle,drawing pass,length of sizing belt and friction coefficient on the residual stress of steel wires after cold drawing is studied.The influence of various process parameters on the residual stress and plastic deformation uniformity of steel wires is also analyzed.Based on the results,the drawing process parameters are optimized.

关 键 词：冷拉拔 超高强度钢丝 残余应力 有限元分析 工艺优化 

分 类 号：TG356.11[金属学及工艺—金属压力加工]